If you bite and chew your food enough times it will break down into small pieces and disappear into your stomach. In our passage, the apostle Paul informs us that our relationships with others bear the same truth. If we bite and devour one another, we will eventually consume each other. Many believers have quit attending the house of God and given up on serving the Lord because Christians have allowed their words to devour and consume. Just as food can only withstand so many bites before it is fully consumed, other believers can only take so much backbiting before weakened beyond their willingness to withstand. As the people of God, we are responsible for strengthening each other and surely will answer to God for any backbiting.
A zealous person is contagious, both positively and negatively. The apostle Paul cautioned that the early believers had been zealously affected, but not in a good way. Those who opposed the gospel were adamant, yet they unwisely waged war against the truth. Night and day, they zealously fought in order to hinder the ministry of the believers. Ultimately, their zeal affected the people of God. These believers who started strong were hindered by the enemies' efforts to the point that it affected their race for the Lord (Galatians 5:7). Modern day enemies of the gospel are aware of this potential pitfall for the believers. They often display more zeal than those who knowingly possess the truth. Yet, today's passage also teaches that “it is good to be zealously affected always in a good thing.” Zeal breeds zeal. Zeal in righteousness will yield righteous results.